L12 nanoparticle-strengthened CoNi-based superalloy with ultrahigh yield stress developed using CALPHAD method

doi:10.1016/j.jallcom.2024.175076

IMR OpenIR

	L12 nanoparticle-strengthened CoNi-based superalloy with ultrahigh yield stress developed using CALPHAD method
	Zhuo, Haojun 1,2,3; Zheng, Debin 1,2,3; Yang, Chen 1,2,3; Guo, Yihui 1,2,3; Pan, Yunwei 1,2,3; Zhang, Qianqian 1,2,3; Le, Jianping 1,2,3; Han, Jiajia 1,2,3; Wang, Cuiping 1,2,3; Zhao, Yilu 5; Li, Yingju 6; Yang, Yuansheng 6; Liu, Xingjun 1,2,3,4,5
通讯作者	Han, Jiajia(jiajiahan@xmu.edu.cn) ; Wang, Cuiping(wangcp@xmu.edu.cn) ; Liu, Xingjun(xjliu@hit.edu.cn)
	2024-10-05
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	1001 页码:15
摘要	In this study, a Co-30Ni-10Ti-2Ta-3Al (30Ni3Al) alloy with high gamma ' phase dissolution temperature (1215 degrees C), excellent mechanical properties, and low density (8.46 g/cm3) was developed based on the thermodynamic database of Co-based high-temperature alloys established by our group. Compositional design and microstructure control were achieved through the utilization of thermodynamic phase diagrams and phase fractions. It is found that the addition of 2 at.% Ta significantly improves the gamma ' phase fraction and solvus while maintaining a suitable working window. However, a rafting trend of gamma ' phase was observed as heat treatment for a long time at 750 degrees C. By introducing 3 at.% Al and 30 at.% Ni into the optimized Co-10Ti-2Ta master alloy, the rafting of the gamma ' phase was effectively suppressed. Benefiting from the fine, stable, high volume fraction gamma '/gamma microstructure, the 30Ni3Al alloy demonstrates compressive yield strengths of approximately 1487 +/- 7 MPa and 1319 +/- 13 MPa at room temperature and 600 degrees C, respectively. The superb mechanical property at high temperatures can be attributed to the work-hardening effect resulting from the interactions of superattice stacking faults in gamma ' phase.
关键词	Cobalt-based superalloys Composition design Mechanical property gamma ' solvus Phase diagram
资助者	National Natural Science Founda- tion of China ; Shenzhen Science and Technology Program ; Guangdong Basic and Applied Basic Research Foundation
DOI	10.1016/j.jallcom.2024.175076
收录类别	SCI
语种	英语
资助项目	National Natural Science Founda- tion of China[51831007] ; National Natural Science Founda- tion of China[52371007] ; Shenzhen Science and Technology Program[SGDX20210823104002016] ; Guangdong Basic and Applied Basic Research Foundation[2021B1515120071]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001257592900001
出版者	ELSEVIER SCIENCE SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/187454
专题	中国科学院金属研究所
通讯作者	Han, Jiajia; Wang, Cuiping; Liu, Xingjun
作者单位	1.Xiamen Univ, Coll Mat, Xiamen 361005, Peoples R China 2.Xiamen Univ, Fujian Key Lab Surface & Interface Engn High Perfo, Xiamen 361005, Peoples R China 3.Xiamen Univ, Xiamen Key Lab High Performance Met & Mat, Xiamen 361005, Peoples R China 4.Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China 5.Harbin Inst Technol, Inst Mat Genome & Big Data, Shenzhen 518055, Peoples R China 6.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhuo, Haojun,Zheng, Debin,Yang, Chen,et al. L12 nanoparticle-strengthened CoNi-based superalloy with ultrahigh yield stress developed using CALPHAD method[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2024,1001:15.
APA	Zhuo, Haojun.,Zheng, Debin.,Yang, Chen.,Guo, Yihui.,Pan, Yunwei.,...&Liu, Xingjun.(2024).L12 nanoparticle-strengthened CoNi-based superalloy with ultrahigh yield stress developed using CALPHAD method.JOURNAL OF ALLOYS AND COMPOUNDS,1001,15.
MLA	Zhuo, Haojun,et al."L12 nanoparticle-strengthened CoNi-based superalloy with ultrahigh yield stress developed using CALPHAD method".JOURNAL OF ALLOYS AND COMPOUNDS 1001(2024):15.